HD 153053
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Ara |
| Right ascension | 17h 00m 06.2794s |
| Declination | −54° 35′ 49.845″ |
| Apparent magnitude (V) | 5.648 |
| Characteristics | |
| Spectral type | A5 IV-V |
| U−B color index | 0.1 |
| B−V color index | 0.19 |
| Astrometry | |
| Radial velocity (Rv) | -20.2 km/s |
| Proper motion (μ) | RA: -7.69 mas/yr Dec.: -73.04 mas/yr |
| Parallax (π) | 19.74 ± 0.8 mas |
| Distance | 165 ± 7 ly (51 ± 2 pc) |
| Absolute magnitude (MV) | 5.824 |
| Details | |
| Mass | 1.8[1] M☉ |
| Luminosity | 12.3[1] L☉ |
| Temperature | 8,000[1] K |
| Age | 420 million[1] years |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) | |
HD 153053 is star in double system.
This star displays an excess emission of infrared radiation, suggesting the presence of an disk of dusty debris. This disk is orbiting at a radius of 49 AU from the host star.[1]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 Wyatt, M. C. et al. (July 2007), "Steady State Evolution of Debris Disks around A Stars", The Astrophysical Journal 663 (1): 365–382, arXiv:astro-ph/0703608, Bibcode:2007ApJ...663..365W, doi:10.1086/518404
External links
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